While specifics about their addictions have not been revealed, Lindsay's famous father, Michael, has long struggled with drugs and alcohol and had recently announced plans to open his own "faith-based" rehab clinic in Los Angeles.

"After seeing what my daughter, myself and other people I know have been through, it has led me to realize this is my calling and purpose in life," he told Us Weekly in September. "The basis of the rehab will be that there is a God; that good conquers evil...all I want to do is open this place and see my family, Dina and my children in a good place. When that day comes, I am done I am finished."